Closure cap for tumblers, bottles, jars, and other receptacles



H. INGRAM June 18, 19345.

CLOSURE CAP FOR TUMBLERS, BOTTLES, JARS AND OTHER RECEPTACLES 2Sheets-Sheet l lNvENToR /Awmv /A/Wa/v f" ATTORNEY H. INGRAM CLOSURE CAPFOR TUMBLERS, BOTTLES, JARS AND OTHER RECEPTACLES Filed Dec. 16, 1930 2Sheets-Sheet 2 mvENToR //P/ /A/a/M/v BY i ATTORNEY 30 terior ofy thecontainer; vandA also other objects modified Cap? Patented June 18, 1935i i n l UNi'rEDsTATEs PATENT oplfslcgr;'fV`

oLosURE CAP FOR TUMBLERS, BOTTLES, y

JARS, AND OTHER nEoErTAoLEs Harry lIngram, Brooklyn, N. Y; v ApplicationDecember 16, 1930, Serial No. 502,770v

l 7 claims. (ol. 2155-37) 'I'hisinvention relates to closure caps forbotgasket as will tend to maintain the gasket in tles, jars and otherreceptacles or containers and sealing contact with the wall of thereceptacle. methodof 4forming and'applying the same. It has Thepreferred andalso modied embodiments among other objects to make a capof tin, or other of the inventionv are illustrated in the accomf C75suitable materialpossessing characteristics of panying drawings inVwhich the several elements ,z5 relative stiffness against accidentaldistortion and and features are shown on an enlarged scale, providing aneffective seal between the cap and and in which: f I l the container toywhich applied and which `will Figure 1 is a side elevation of acontainer, such afford a practical reseal between the cap and aS atumbler, embodying the invention;

10i container in use 'of the closure as a service cap Figure 2 iS aplanVieW 0f Figure 1; f 101 after its first removal from the container`Figure 3 iS a VeitiCal SeCti0n,en1a1'ged,- 0n line Another Objectis toform a closure cap, made 3.-3 of Fig. 2, 100k11g` in the direction 0fthe preferably of tin, possessing characteristics l of aiiQWS; trelative stiffness, with audepending,A initially ver,- Figill'e 4 iS aVieWeimilal' t0 Figure 3J Showing I tically corrugated or uted, apron orskirt, and the parte 3S they appeal' after inWaI'd-deee- 15 with anannular groove in the under face of the tion of` the cap skirt and thecontents have been ciosed top of the Cap adjacent to said skirt', tuprocessed and vacuum Within the wntainerv pre-v receive' and holdtheupperl edge of.' an annular' duced; l mi y or ring-shaped gasket,- 1extending downwardly Figure 5 is asection on the line' 5--5v of- Figure2,

i@ parallel with the inner face ofthe depending cor- Showing Position 0ithe parte before the Skirt 20 rugated skirt or apron, between it andthewall of has been deflected .and `Contents` PIOCSSSed; t the contamerwithwhich it 'ists be brought into kFigure 6- is a Section Similar te Figure5, show- Sealing Contact, t ing the parts after the'skirt has beendeflected Also to provide for the lower edge of the sealing and theCOntents DTOCeSSed; gasket to extend below the bottom edg'eof the lFigure 7 iS e Section 0n iine 7-'7 0f Figure' i, 25 depending lskirt ofthecapso as to guard the ieoking in the direction 0f the eiiOWS;l handOrfmgers gf the housewife-,against liability Figure 8 is azsectionsimilar to Fig. 3 showing a of beingfcut bytheedge of the skirt inlifting modified form 0f een: t they cap fromv the container for accessto the in-f Figure 9 is @View Similar i0 Figure if Within f 30 4 n ashereinafter indicated; Figure 10 isa view similar to Figure 8 showingThe features specified resultl in the pruducuon e modified ferm 0f thetop edge 0f the tumbler; of a stronger cap at a relatively small cost ofFigure l1 is a View similar to Figure 10.,show production,'with a mosteffective seal', and makesl ing parte 2Jfter the Skirt haS beendeflected and possible the use of the cap as a service cap VafterContents 0f the tuinbiei' have been D'IVOVCeSSed;V 35 consumption of.some of the co-ntents of the con- Figure iZiS a Vertical Sectiontililliiigh'thev` 11D- tainer, with repeated resealing of the containerDer Daft 0f e iai With a Cap and gasket before l to some degreethroughout repeated replacement the Celi Skirt has lbeen deflected andbefore ofthe cap 'after each removal ofsome of the Di-OCeSS'ngitSCOntentS n 40 containers contents in actual* service. 'Itl alsoFigure7 13 is a Vertical section', enlarged Seele, 40 makes possible thecomparatively easy removal "through the 'upper Dertien of Fig.V 1'2,`showingy of the cap after'its rst installation "by breaking parts' afterthecap skirt has been deflectedand the vacuum within the container orreceptacle Contents 0f thejelhefve been PFOCeSSes by insertion of apointed instrument between the In the 'drawings the numeralk IAdesignates a I gasket and wall of the receptacle at a point-opsuitablecontainer which may be a tumbler, a 45 posite to one of the depressionsof the,r corrugabotle, a jar', a can, or other receptacle, vwhich willtions in the skirt or apronso as to provide. at haveV a closure capy 2yand a sealing gasket 3 for such temporarily displaced portion of thegasket, eiectfng a hermetic' sealing of the contents of a vent ,to breakthe vacuum andpermit leasy the container. `Under the present inventionlthe removal of the cap from'the container. The corclosure cap- 2`i'sfpreferably'made of' tiny possessing 50 rugations in the skirtl or apronalso -functionto characteristics of relative'stiffne'ss, as thefeaturespermit atmospheric pressure betweenthe skirt of the present inventionmake that possible and and gasket in the direction of the wall of thepracticable without sacricing an effective s'eal receptacle whenthere-is vacuum in the receptacle and. contributing to,.rather` thandetractingfrom,Y

or container so as to'exert such pressureon the security in holding thecap-tothe container and' 55 yet facilitating removal of the cap whendesired while at the same time reducing the cost of production and alsoproviding a cap affording to a practical degree a resealing cap in useafter the initial removal of the cap. The cap 2 is formed with adepending skirt or apron 4 made with vertically extending flutings orcorrugations 5 and also formed at its perimeter, or substantiallythereat, with a groove or recess 6 designed to receive and ,hold theupper portion of an annular or ring-shaped elastic gasket 3, the outerface of which lies parallel with the inner face of the dependingcorrugated skirt 4 and its inner face adapted to make sealing contactwith the outer surface of the wall of the container while the undersurface of the centrally disposed top of the cap will rest or seat uponthe top edge of the container wall all as illustrated. When the cap andits gasket is rst slipped over the open mouth of the container, thedepending skirt or apron by means of a suitable tool or former, ispressed inwardly on a downward inclination or taper so as to makesealing contact with the outer surface of the Wall of the container,changing the outlines of the depending skirt and gasket from what isshown in Figs. 3, 5, 8, and l2 to that shown in Figs. 4, 6, 9, l1 and 13respectively, and causing the inner face of the gasket to conform toirregularities in theiouter surface of the wall of the container andenterand practically close cavities otherwise existingbetween the wallof the container and the inner surface of the gasket, and making aneffective seal between the cap and containenas illustrated in Figs.'4,6, 9, 11 and 13 of thedrawings. The vertical corrugations give a degreeof` elasticity to the skirt or apron in application and removal of thecap from the container and maintain the uniformity of contour of theskirt orapron throughout its circumference so that the effective seal isnot impaired, whether the contents of the container have been subjectedto a. processingtreatment as commonly practiced in the hermetic sealingof the contents of a container, or not so processed. 'Ihe verticalcorrugations to the skirt or apron, under the present invention, performthe additional and important function of permitting the insertion, by ahousewife, of a pointed instrument, for instance a needle like article,.between the gasket and wall of the container opposite the depressedportion Y of oneof the 'corrugations so that the face of the gasket atthe point of application of the pointed instrument rwill be pressed awayfrom the wall of theJ container and into a corrugation of the cap skirtand thus provide a vent leading to the interlor of the container at thetemporarily displaced portion of the gasket away from the wall ofthereceptacle and break the vacuum inthe receptacle and thus facilitatethe removal of the cap without damage` to the cap or its sealing gasket.The corrugations also under normal con- Aditions serve to admitatmosphere between the gasket and skirt so as to exert an inwardlyatmospheric pressure on the gasket in the direction of the wall of thecontainer so as to press the gasket-against the wall of the containerand tend to maintain sealing contact between the gasket and Wall of thecontainer as previously stated.

Figs; 4, 6, 9, l1 and 13 show the relationship between the cap and itsgasket and the container under acondition of vacuum in the container andthe othergures without such vacuum. n In Figs. 8, 9, l0 and 1l the capis shown formed withga depressedbead T adapted to seat against therounded/.top edge ofthe wall of the tumbler or container, and theelastic gasket will be forced beneath the bead and close the spacebetween the bead and outside of the container wall when the cap apron orskirt is given its downward and inward inclination as illustrated inFigs. 9, 1l and 13. In Figures 12 and 13 the container or jar I is shownas formed with an inclined face 8 at the outer surface of the wallsubstantially at the top and with a shoulder 9 below the inclined faceso that the rubber gasket when compressed to sealing position willcontact with the inclined face and also lie beneath the shoulder 9 thusmaking an eiective seal at said points and aid in holding the cap to itsclosing position.

It will be observed that in each form, the elastic gasket is shown asextending below the bottom edge of the depending skirt or apron. That isfor the purpose of protecting or guarding the lingers or hand of thehousewife, or manipulator, from possible injury by contacting with theedge of the skirt in lifting the cap from off the container.

I have illustrated and described the details of the severalmodifications but changes may be made therein and essential features ofthe invention retained as sought to be defined by the appended claims.

Having described my invention and set forth its merits what I claim is:-

1. A closure for receptacles comprising a cap having a depending skirtformed with axially disposed corrugations and an elastic gasketpositioned between the skirt and wall of the receptacle and of a crosssectional thickness not to fill the skirt corrugations, the skirtextending downwardly and inwardly to effect sealing contact between thegasket and receptacle.

2. A closure for receptacles comprising a cap having a depending skirtformed with axially disposed corrugations, and an elastic gasketpositioned between the skirt and receptacle and of a cross sectionalthickness not to fill the skirt corrugations, with its upper portion incontact with the inner face of the cap, the skirt extending downwardlyand inwardly to effect sealing contact between the gasket, receptacleand cap.

3. A closure for receptacles comprising a cap having a depending skirt,and an elastic gasket lying between the skirt and receptacle, themeeting faces of the skirt and gasket being so shaped as to form axiallyextending air spaces between the gasket and skirt to provide foratmospheric pressure' against the gasket in effecting sealing contactbetween the gasket and receptacle, the skirt extending downwardly andinwardly to effect sealing contact between the gasket and receptacle.

4. A closure for receptacles comprising a cap having a depending skirtformed with axially disposed corrugations, and an elastic gasketpositioned between the skirt and receptacle, the skirt extendingdownwardly and inwardly to effect sealing contact between the gasket andreceptacle, the corrugations serving to-receive a portion of the gasketdisplaced by a tool inserted between the gasket and wall of thereceptacle to effect a vent to relieve a vacuum within the receptacle tofacilitate removal of the cap.

`5. A closure for receptacles comprising a cap having a depending skirtformed with axially disposed corrugations, and an elastic gasketpositioned between the skirt and receptacle and of a cross sectionalthickness not to fill the skirt corrugations, the skirt extendingdownwardly and inwardly to effect sealing contact between the elasticgasket and receptacle, apices of the corrugations making sealing icontact with the elastic gasket, and the spaces between the apicesconstituting cavities serving to receive atmospheric pressure betweenthe skirt and gasket to exert pressure on the gasket in direction of thewall of the receptacle to effect sealing Contact of the gasket with thewall of the receptacle.v

6. A. closure for receptacles comprising a cap having a depending skirtformedv with axially disposed corrugations, and an elastic gasketplositioned between the skirt and receptacle, and of a cross sectionalthickness not to ll the skirt corrugations, the skirt extendingdownwardly and inwardly to effect sealing contact between the gasket andreceptacle, the gasket. being also extended below the lower edge of theskirt prior to application of the closure and subsequent tok its removalto afford a safety guard for the hand in manipulation of the cap.

7. A closure for receptacles comprising a capv having a depending skirtformed with axially extending corrugations and with a groove in the v`face disposed for Contact with the inner apices of the skirtoorrugations, the corrugated skirt extending downwardly and inwardly toeffect sealing contact between the gasket and cap and a receptacle towhich the cap is applied.

HARRY INGRAM.

